Abstract: A non-chrome, copper-containing catalyst, Cu—Al—O and method of preparing the same are provided wherein the Cu—Al—O catalyst is prepared by the co-precipitation of copper nitrate (Cu(NO3)2) and sodium aluminate (Na2Al2O4) solutions using sodium carbonate (Na2CO3) as a precipitant. The precipitate is filtered, washed to removed excess sodium, and dried. The dried product, to be used in a powder form, is calcined at a preferred temperature of approximately 700° to 900° C. for approximately 1 to 4 hours. The dry powder, to be tableted or extruded, is calcined at a temperature of approximately 400° to 700° C. The activity of the Cu—Al—O catalyst can be promoted in hydrogenolysis applications by the addition of various agents. The Cu—Al—O catalyst can be employed in applications in place of Cu/Cr, or other copper based catalysts.
Abstract: An improved catalyst based on cobalt and/or rhodium dissolved in a non-aqueous ionic solvent which is liquid at a temperature of less than 90° C. More particularly, the catalyst comprises at least one complex of cobalt and/or rhodium coordinated with at least one nitrogen-containing ligand and the non-aqueous ionic solvent comprises at least one quaternary ammonium and/or phosphonium cation and at least one inorganic anion.
Type:
Application
Filed:
July 12, 2002
Publication date:
March 20, 2003
Applicant:
Institut Francais du Petrole
Inventors:
Gerhard Hillebrand, Andre Hirschauer, Dominique Commereuc, Helene Olivier-Bourbigou, Lucien Saussine
Abstract: A crystalline titanosilicate catalyst which is usable as a catalyst in the oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group, a process for producing the catalyst, and a process for producing an oxidized compound by an oxidation reaction using the catalyst. It has been found that a crystalline titanosilicate having a structural code of MWW effectively functions as a catalyst in an oxidation reaction of a compound having a carbon-carbon double bond and at least one other functional group wherein the carbon-carbon double bond of the compound is oxidized by using a peroxide as an oxidizing agent, thereby to highly selectively provide an intended oxidized compound.
Abstract: Catalytic processes have been developed for direct ambient air oxidative conversion of hydrocarbons to aldehydes and unsaturated alcohols. Aliphatic hydrocarbons including methane, hexanes, octanes, decanes, gasoline, diesel fuel, oils, solvents and other organic compounds have been oxidized by this catalytic process. The catalysts are based on molecular strings of di-, tri- and/or poly-groups of transition metal complexes. Laboratory results have demonstrated [iron(II)]2, [manganese(II)]2 and related families of catalysts to be effective for ambient air direct oxidative conversion of hydrocarbons to products in high yields at room temperature and above, while [cobalt(II)]3 was effective for air oxidative conversion of methane to formaldehyde and for other gaseous hydrocarbons to their corresponding aldehydes at elevated temperatures.
Abstract: A process for preparing branched olefins comprising 0.5% or less quaternary aliphatic carbon atoms, which process comprises dehydrogenating an isoparaffinic composition over a suitable catalyst which isoparaffinic composition comprises paraffins having a carbon number in the range of from 7 to 35, of which paraffins at least a portion of the molecules is branched, the average number of branches per paraffin molecule being at least 0.7 and the branching comprising methyl and optionally ethyl branches, and which isoparaffinic composition may be obtained by hydrocracking and hydroisomerization of a paraffinic wax; a method of using olefins for making an anionic surfactant, a nonionic surfactant or a cationic surfactant, in particular a surfactant sulfate or sulfonate, comprising converting the branched olefins into the surfactant; and an anionic surfactant, a nonionic surfactant or a cationic surfactant which is obtainable by the method of use.
Type:
Application
Filed:
February 14, 2002
Publication date:
December 5, 2002
Inventors:
Laurent Alain Michel Fenouil, Brendan Dermot Murray, Paul Marie Ayoub
Abstract: The present invention provides a process for producing 2-butanone and 2-butanol under comparatively mild conditions with a decreased number of steps by direct oxidization of a hydrocarbon, which is cheaper than butenes, as a raw material using molecular oxygen such as air. The process for producing 2-butanone and 2-butanol comprises directly oxidizing n-butane using molecular oxygen in the presence of aluminum phosphate containing transition metal atoms and a selectivity-improving agent, as required.
Abstract: A process of the present invention produces an organic compound by allowing a compound containing an electron attractive group of following Formula (1): 1
Abstract: Improved oxidation methods are provided wherein a reaction mixture comprising a substrate to be oxidized (e.g., phenols, alkenes) and an oxidation catalyst (typically dispersed in an organic solvent system) is supplemented with a compressed gas which expands the reaction mixture, thus accelerating the oxidation reaction. In preferred practice pressurized subcritical or supercritical carbon dioxide is used as the expanding gas, which is introduced into the reaction mixture together with an oxidizing agent. The inventive methods improve the substrate conversion and product selectivity by increasing the solubility of the oxidizing agent in the reaction mixture.
Type:
Grant
Filed:
April 7, 2000
Date of Patent:
September 10, 2002
Assignee:
The University of Kansas
Inventors:
Bala Subramaniam, Daryle H. Busch, Ghezai T. Musie, Ming Wei
Abstract: The invention discloses a method for converting alkane to oxygenate which comprises the following steps: (i) contacting an alkane-containing gas with non-metal, regenerable, electrophile ions in a concentrated sulfuric acid medium under conditions sufficient to provide electrophilicly activated alkane and reduced electrophile ions; (ii) contacting said electrophilicly activated alkane with sulfate to form a sulfate ester; (iii) exposing the sulfate ester to hydrolyzing conditions sufficient to convert it to oxygenate; and (iv) collecting the oxygenate.
Type:
Application
Filed:
January 30, 2001
Publication date:
August 1, 2002
Inventors:
Clarence D. Chang, Jose G. Santiesteban
Abstract: A process for producing an alcohol from a gaseous hydrocarbon, e.g. a lower alkane such as methane, via oxidative reaction of the hydrocarbon in a concentrated sulfuric acid medium in the presence of a catalyst employs an added catalyst comprising a substance selected from iodine, iodine compounds, titanium, titanium compounds, chromiun and chromium compounds.
Type:
Grant
Filed:
June 8, 2000
Date of Patent:
April 30, 2002
Assignees:
Statoil Research Centre
Inventors:
Niels J. Bjerrum, Gang Xiao, Hans Aage Hjuler
Abstract: Processes applying mesoporous titanium containing zeolite based catalysts for selective oxidation or epoxidation of hydrocarbons by peroxides.
Type:
Application
Filed:
September 21, 2001
Publication date:
March 28, 2002
Applicant:
Haldor Topsoe A/S
Inventors:
Iver Schmidt, Michael Brorson, Claus J.H. Jacobsen
Abstract: A process for the production of synthesis gas for obtaining compounds such as ammonia or methanol, in which hydrocarbons and steam are reacted first in a primary reforming section (11) and then—together with oxygen—in a secondary reforming section (12), thus obtaining CO, CO2, H2 and possibly N2 which are then fed to a carbon monoxide conversion section (13, 14), is distinguished by the fact of reacting hydrocarbons, steam and oxygen in an autothermal reforming section (20) provided in parallel with respect to other reforming sections (11, 12), and feeding the so produced CO, CO2, H2 and possibly N2 to the carbon monoxide conversion section (13, 14).